From: Mijhail Moreyra Date: Mon, 10 Oct 2011 14:09:52 +0000 (-0300) Subject: [media] cx23885: Add ALSA support X-Git-Tag: next-20111101~96^2~36 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9e44d63246a9c884900e56e2aa16fba94dee5f0c;p=karo-tx-linux.git [media] cx23885: Add ALSA support [stoth@kernellabs.com: add it to the makefile and fix snd_card binding] [liplianin@netup.ru: videobuf: Remove the videobuf_sg_dma_map/unmap functions] Signed-off-by: Mijhail Moreyra Signed-off-by: Steven Toth Signed-off-by: Igor M. Liplianin Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/cx23885/Makefile b/drivers/media/video/cx23885/Makefile index 185cc019d3db..f81f2796a0f9 100644 --- a/drivers/media/video/cx23885/Makefile +++ b/drivers/media/video/cx23885/Makefile @@ -2,7 +2,7 @@ cx23885-objs := cx23885-cards.o cx23885-video.o cx23885-vbi.o \ cx23885-core.o cx23885-i2c.o cx23885-dvb.o cx23885-417.o \ cx23885-ioctl.o cx23885-ir.o cx23885-av.o cx23885-input.o \ cx23888-ir.o netup-init.o cimax2.o netup-eeprom.o \ - cx23885-f300.o + cx23885-f300.o cx23885-alsa.o obj-$(CONFIG_VIDEO_CX23885) += cx23885.o obj-$(CONFIG_MEDIA_ALTERA_CI) += altera-ci.o diff --git a/drivers/media/video/cx23885/cx23885-alsa.c b/drivers/media/video/cx23885/cx23885-alsa.c new file mode 100644 index 000000000000..31a89b3ac1d0 --- /dev/null +++ b/drivers/media/video/cx23885/cx23885-alsa.c @@ -0,0 +1,535 @@ +/* + * + * Support for CX23885 analog audio capture + * + * (c) 2008 Mijhail Moreyra + * Adapted from cx88-alsa.c + * (c) 2009 Steven Toth + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#include + + +#include "cx23885.h" +#include "cx23885-reg.h" + +#define AUDIO_SRAM_CHANNEL SRAM_CH07 + +#define dprintk(level, fmt, arg...) if (audio_debug >= level) \ + printk(KERN_INFO "%s/1: " fmt, chip->dev->name , ## arg) + +#define dprintk_core(level, fmt, arg...) if (audio_debug >= level) \ + printk(KERN_DEBUG "%s/1: " fmt, chip->dev->name , ## arg) + +/**************************************************************************** + Module global static vars + ****************************************************************************/ + +static unsigned int disable_analog_audio; +module_param(disable_analog_audio, int, 0644); +MODULE_PARM_DESC(disable_analog_audio, "disable analog audio ALSA driver"); + +static unsigned int audio_debug; +module_param(audio_debug, int, 0644); +MODULE_PARM_DESC(audio_debug, "enable debug messages [analog audio]"); + +/**************************************************************************** + Board specific funtions + ****************************************************************************/ + +/* Constants taken from cx88-reg.h */ +#define AUD_INT_DN_RISCI1 (1 << 0) +#define AUD_INT_UP_RISCI1 (1 << 1) +#define AUD_INT_RDS_DN_RISCI1 (1 << 2) +#define AUD_INT_DN_RISCI2 (1 << 4) /* yes, 3 is skipped */ +#define AUD_INT_UP_RISCI2 (1 << 5) +#define AUD_INT_RDS_DN_RISCI2 (1 << 6) +#define AUD_INT_DN_SYNC (1 << 12) +#define AUD_INT_UP_SYNC (1 << 13) +#define AUD_INT_RDS_DN_SYNC (1 << 14) +#define AUD_INT_OPC_ERR (1 << 16) +#define AUD_INT_BER_IRQ (1 << 20) +#define AUD_INT_MCHG_IRQ (1 << 21) +#define GP_COUNT_CONTROL_RESET 0x3 + +/* + * BOARD Specific: Sets audio DMA + */ + +static int cx23885_start_audio_dma(struct cx23885_audio_dev *chip) +{ + struct cx23885_audio_buffer *buf = chip->buf; + struct cx23885_dev *dev = chip->dev; + struct sram_channel *audio_ch = + &dev->sram_channels[AUDIO_SRAM_CHANNEL]; + + dprintk(1, "%s()\n", __func__); + + /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */ + cx_clear(AUD_INT_DMA_CTL, 0x11); + + /* setup fifo + format - out channel */ + cx23885_sram_channel_setup(chip->dev, audio_ch, buf->bpl, + buf->risc.dma); + + /* sets bpl size */ + cx_write(AUD_INT_A_LNGTH, buf->bpl); + + /* This is required to get good audio (1 seems to be ok) */ + cx_write(AUD_INT_A_MODE, 1); + + /* reset counter */ + cx_write(AUD_INT_A_GPCNT_CTL, GP_COUNT_CONTROL_RESET); + atomic_set(&chip->count, 0); + + dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d " + "byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start+12)>>1, + chip->num_periods, buf->bpl * chip->num_periods); + + /* Enables corresponding bits at AUD_INT_STAT */ + cx_write(AUDIO_INT_INT_MSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | + AUD_INT_DN_RISCI1); + + /* Clean any pending interrupt bits already set */ + cx_write(AUDIO_INT_INT_STAT, ~0); + + /* enable audio irqs */ + cx_set(PCI_INT_MSK, chip->dev->pci_irqmask | PCI_MSK_AUD_INT); + + /* start dma */ + cx_set(DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */ + cx_set(AUD_INT_DMA_CTL, 0x11); /* audio downstream FIFO and + RISC enable */ + if (audio_debug) + cx23885_sram_channel_dump(chip->dev, audio_ch); + + return 0; +} + +/* + * BOARD Specific: Resets audio DMA + */ +static int cx23885_stop_audio_dma(struct cx23885_audio_dev *chip) +{ + struct cx23885_dev *dev = chip->dev; + dprintk(1, "Stopping audio DMA\n"); + + /* stop dma */ + cx_clear(AUD_INT_DMA_CTL, 0x11); + + /* disable irqs */ + cx_clear(PCI_INT_MSK, PCI_MSK_AUD_INT); + cx_clear(AUDIO_INT_INT_MSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | + AUD_INT_DN_RISCI1); + + if (audio_debug) + cx23885_sram_channel_dump(chip->dev, + &dev->sram_channels[AUDIO_SRAM_CHANNEL]); + + return 0; +} + +/* + * BOARD Specific: Handles audio IRQ + */ +int cx23885_audio_irq(struct cx23885_dev *dev, u32 status, u32 mask) +{ + struct cx23885_audio_dev *chip = dev->audio_dev; + + if (0 == (status & mask)) + return 0; + + cx_write(AUDIO_INT_INT_STAT, status); + + /* risc op code error */ + if (status & AUD_INT_OPC_ERR) { + printk(KERN_WARNING "%s/1: Audio risc op code error\n", + dev->name); + cx_clear(AUD_INT_DMA_CTL, 0x11); + cx23885_sram_channel_dump(dev, + &dev->sram_channels[AUDIO_SRAM_CHANNEL]); + } + if (status & AUD_INT_DN_SYNC) { + dprintk(1, "Downstream sync error\n"); + cx_write(AUD_INT_A_GPCNT_CTL, GP_COUNT_CONTROL_RESET); + return 1; + } + /* risc1 downstream */ + if (status & AUD_INT_DN_RISCI1) { + atomic_set(&chip->count, cx_read(AUD_INT_A_GPCNT)); + snd_pcm_period_elapsed(chip->substream); + } + /* FIXME: Any other status should deserve a special handling? */ + + return 1; +} + +static int dsp_buffer_free(struct cx23885_audio_dev *chip) +{ + BUG_ON(!chip->dma_size); + + dprintk(2, "Freeing buffer\n"); + videobuf_dma_unmap(&chip->pci->dev, chip->dma_risc); + videobuf_dma_free(chip->dma_risc); + btcx_riscmem_free(chip->pci, &chip->buf->risc); + kfree(chip->buf); + + chip->dma_risc = NULL; + chip->dma_size = 0; + + return 0; +} + +/**************************************************************************** + ALSA PCM Interface + ****************************************************************************/ + +/* + * Digital hardware definition + */ +#define DEFAULT_FIFO_SIZE 4096 + +static struct snd_pcm_hardware snd_cx23885_digital_hw = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + /* Analog audio output will be full of clicks and pops if there + are not exactly four lines in the SRAM FIFO buffer. */ + .period_bytes_min = DEFAULT_FIFO_SIZE/4, + .period_bytes_max = DEFAULT_FIFO_SIZE/4, + .periods_min = 1, + .periods_max = 1024, + .buffer_bytes_max = (1024*1024), +}; + +/* + * audio pcm capture open callback + */ +static int snd_cx23885_pcm_open(struct snd_pcm_substream *substream) +{ + struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + if (!chip) { + printk(KERN_ERR "BUG: cx23885 can't find device struct." + " Can't proceed with open\n"); + return -ENODEV; + } + + err = snd_pcm_hw_constraint_pow2(runtime, 0, + SNDRV_PCM_HW_PARAM_PERIODS); + if (err < 0) + goto _error; + + chip->substream = substream; + + runtime->hw = snd_cx23885_digital_hw; + + if (chip->dev->sram_channels[AUDIO_SRAM_CHANNEL].fifo_size != + DEFAULT_FIFO_SIZE) { + unsigned int bpl = chip->dev-> + sram_channels[AUDIO_SRAM_CHANNEL].fifo_size / 4; + bpl &= ~7; /* must be multiple of 8 */ + runtime->hw.period_bytes_min = bpl; + runtime->hw.period_bytes_max = bpl; + } + + return 0; +_error: + dprintk(1, "Error opening PCM!\n"); + return err; +} + +/* + * audio close callback + */ +static int snd_cx23885_close(struct snd_pcm_substream *substream) +{ + return 0; +} + +/* + * hw_params callback + */ +static int snd_cx23885_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream); + struct videobuf_dmabuf *dma; + + struct cx23885_audio_buffer *buf; + int ret; + + if (substream->runtime->dma_area) { + dsp_buffer_free(chip); + substream->runtime->dma_area = NULL; + } + + chip->period_size = params_period_bytes(hw_params); + chip->num_periods = params_periods(hw_params); + chip->dma_size = chip->period_size * params_periods(hw_params); + + BUG_ON(!chip->dma_size); + BUG_ON(chip->num_periods & (chip->num_periods-1)); + + buf = kzalloc(sizeof(*buf), GFP_KERNEL); + if (NULL == buf) + return -ENOMEM; + + buf->bpl = chip->period_size; + + dma = &buf->dma; + videobuf_dma_init(dma); + ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE, + (PAGE_ALIGN(chip->dma_size) >> PAGE_SHIFT)); + if (ret < 0) + goto error; + + ret = videobuf_dma_map(&chip->pci->dev, dma); + if (ret < 0) + goto error; + + ret = cx23885_risc_databuffer(chip->pci, &buf->risc, dma->sglist, + chip->period_size, chip->num_periods, 1); + if (ret < 0) + goto error; + + /* Loop back to start of program */ + buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC); + buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); + buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ + + chip->buf = buf; + chip->dma_risc = dma; + + substream->runtime->dma_area = chip->dma_risc->vaddr; + substream->runtime->dma_bytes = chip->dma_size; + substream->runtime->dma_addr = 0; + + return 0; + +error: + kfree(buf); + return ret; +} + +/* + * hw free callback + */ +static int snd_cx23885_hw_free(struct snd_pcm_substream *substream) +{ + + struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream); + + if (substream->runtime->dma_area) { + dsp_buffer_free(chip); + substream->runtime->dma_area = NULL; + } + + return 0; +} + +/* + * prepare callback + */ +static int snd_cx23885_prepare(struct snd_pcm_substream *substream) +{ + return 0; +} + +/* + * trigger callback + */ +static int snd_cx23885_card_trigger(struct snd_pcm_substream *substream, + int cmd) +{ + struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream); + int err; + + /* Local interrupts are already disabled by ALSA */ + spin_lock(&chip->lock); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + err = cx23885_start_audio_dma(chip); + break; + case SNDRV_PCM_TRIGGER_STOP: + err = cx23885_stop_audio_dma(chip); + break; + default: + err = -EINVAL; + break; + } + + spin_unlock(&chip->lock); + + return err; +} + +/* + * pointer callback + */ +static snd_pcm_uframes_t snd_cx23885_pointer( + struct snd_pcm_substream *substream) +{ + struct cx23885_audio_dev *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + u16 count; + + count = atomic_read(&chip->count); + + return runtime->period_size * (count & (runtime->periods-1)); +} + +/* + * page callback (needed for mmap) + */ +static struct page *snd_cx23885_page(struct snd_pcm_substream *substream, + unsigned long offset) +{ + void *pageptr = substream->runtime->dma_area + offset; + return vmalloc_to_page(pageptr); +} + +/* + * operators + */ +static struct snd_pcm_ops snd_cx23885_pcm_ops = { + .open = snd_cx23885_pcm_open, + .close = snd_cx23885_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_cx23885_hw_params, + .hw_free = snd_cx23885_hw_free, + .prepare = snd_cx23885_prepare, + .trigger = snd_cx23885_card_trigger, + .pointer = snd_cx23885_pointer, + .page = snd_cx23885_page, +}; + +/* + * create a PCM device + */ +static int snd_cx23885_pcm(struct cx23885_audio_dev *chip, int device, + char *name) +{ + int err; + struct snd_pcm *pcm; + + err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); + if (err < 0) + return err; + pcm->private_data = chip; + strcpy(pcm->name, name); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx23885_pcm_ops); + + return 0; +} + +/**************************************************************************** + Basic Flow for Sound Devices + ****************************************************************************/ + +/* + * Alsa Constructor - Component probe + */ + +struct cx23885_audio_dev *cx23885_audio_initdev(struct cx23885_dev *dev) +{ + struct snd_card *card; + struct cx23885_audio_dev *chip; + int err; + + if (disable_analog_audio) + return NULL; + + if (dev->sram_channels[AUDIO_SRAM_CHANNEL].cmds_start == 0) { + printk(KERN_WARNING "%s(): Missing SRAM channel configuration " + "for analog TV Audio\n", __func__); + return NULL; + } + + err = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, + THIS_MODULE, sizeof(struct cx23885_audio_dev), &card); + if (err < 0) + goto error; + + chip = (struct cx23885_audio_dev *) card->private_data; + chip->dev = dev; + chip->pci = dev->pci; + chip->card = card; + spin_lock_init(&chip->lock); + + snd_card_set_dev(card, &dev->pci->dev); + + err = snd_cx23885_pcm(chip, 0, "CX23885 Digital"); + if (err < 0) + goto error; + + strcpy(card->driver, "CX23885"); + sprintf(card->shortname, "Conexant CX23885"); + sprintf(card->longname, "%s at %s", card->shortname, dev->name); + + err = snd_card_register(card); + if (err < 0) + goto error; + + dprintk(0, "registered ALSA audio device\n"); + + return chip; + +error: + snd_card_free(card); + printk(KERN_ERR "%s(): Failed to register analog " + "audio adapter\n", __func__); + + return NULL; +} + +/* + * ALSA destructor + */ +void cx23885_audio_finidev(struct cx23885_dev *dev) +{ + struct cx23885_audio_dev *chip = dev->audio_dev; + + snd_card_free(chip->card); +} diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c index ee41a8882f58..d8dfa40b4af9 100644 --- a/drivers/media/video/cx23885/cx23885-core.c +++ b/drivers/media/video/cx23885/cx23885-core.c @@ -156,11 +156,12 @@ static struct sram_channel cx23885_sram_channels[] = { }, [SRAM_CH07] = { .name = "ch7", - .cmds_start = 0x0, - .ctrl_start = 0x0, - .cdt = 0x0, - .fifo_start = 0x0, - .fifo_size = 0x0, + .name = "TV Audio", + .cmds_start = 0x10190, + .ctrl_start = 0x10480, + .cdt = 0x10a00, + .fifo_start = 0x7000, + .fifo_size = 0x1000, .ptr1_reg = DMA6_PTR1, .ptr2_reg = DMA6_PTR2, .cnt1_reg = DMA6_CNT1, @@ -1082,10 +1083,10 @@ static void cx23885_dev_unregister(struct cx23885_dev *dev) static __le32 *cx23885_risc_field(__le32 *rp, struct scatterlist *sglist, unsigned int offset, u32 sync_line, unsigned int bpl, unsigned int padding, - unsigned int lines) + unsigned int lines, unsigned int lpi) { struct scatterlist *sg; - unsigned int line, todo; + unsigned int line, todo, sol; /* sync instruction */ if (sync_line != NO_SYNC_LINE) @@ -1098,16 +1099,22 @@ static __le32 *cx23885_risc_field(__le32 *rp, struct scatterlist *sglist, offset -= sg_dma_len(sg); sg++; } + + if (lpi && line > 0 && !(line % lpi)) + sol = RISC_SOL | RISC_IRQ1 | RISC_CNT_INC; + else + sol = RISC_SOL; + if (bpl <= sg_dma_len(sg)-offset) { /* fits into current chunk */ - *(rp++) = cpu_to_le32(RISC_WRITE|RISC_SOL|RISC_EOL|bpl); + *(rp++) = cpu_to_le32(RISC_WRITE|sol|RISC_EOL|bpl); *(rp++) = cpu_to_le32(sg_dma_address(sg)+offset); *(rp++) = cpu_to_le32(0); /* bits 63-32 */ offset += bpl; } else { /* scanline needs to be split */ todo = bpl; - *(rp++) = cpu_to_le32(RISC_WRITE|RISC_SOL| + *(rp++) = cpu_to_le32(RISC_WRITE|sol| (sg_dma_len(sg)-offset)); *(rp++) = cpu_to_le32(sg_dma_address(sg)+offset); *(rp++) = cpu_to_le32(0); /* bits 63-32 */ @@ -1164,10 +1171,10 @@ int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, rp = risc->cpu; if (UNSET != top_offset) rp = cx23885_risc_field(rp, sglist, top_offset, 0, - bpl, padding, lines); + bpl, padding, lines, 0); if (UNSET != bottom_offset) rp = cx23885_risc_field(rp, sglist, bottom_offset, 0x200, - bpl, padding, lines); + bpl, padding, lines, 0); /* save pointer to jmp instruction address */ risc->jmp = rp; @@ -1175,11 +1182,11 @@ int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, return 0; } -static int cx23885_risc_databuffer(struct pci_dev *pci, +int cx23885_risc_databuffer(struct pci_dev *pci, struct btcx_riscmem *risc, struct scatterlist *sglist, unsigned int bpl, - unsigned int lines) + unsigned int lines, unsigned int lpi) { u32 instructions; __le32 *rp; @@ -1199,7 +1206,8 @@ static int cx23885_risc_databuffer(struct pci_dev *pci, /* write risc instructions */ rp = risc->cpu; - rp = cx23885_risc_field(rp, sglist, 0, NO_SYNC_LINE, bpl, 0, lines); + rp = cx23885_risc_field(rp, sglist, 0, NO_SYNC_LINE, + bpl, 0, lines, lpi); /* save pointer to jmp instruction address */ risc->jmp = rp; @@ -1517,7 +1525,7 @@ int cx23885_buf_prepare(struct videobuf_queue *q, struct cx23885_tsport *port, goto fail; cx23885_risc_databuffer(dev->pci, &buf->risc, videobuf_to_dma(&buf->vb)->sglist, - buf->vb.width, buf->vb.height); + buf->vb.width, buf->vb.height, 0); } buf->vb.state = VIDEOBUF_PREPARED; return 0; @@ -1741,15 +1749,19 @@ static irqreturn_t cx23885_irq(int irq, void *dev_id) struct cx23885_tsport *ts2 = &dev->ts2; u32 pci_status, pci_mask; u32 vida_status, vida_mask; + u32 audint_status, audint_mask; u32 ts1_status, ts1_mask; u32 ts2_status, ts2_mask; int vida_count = 0, ts1_count = 0, ts2_count = 0, handled = 0; + int audint_count = 0; bool subdev_handled; pci_status = cx_read(PCI_INT_STAT); pci_mask = cx23885_irq_get_mask(dev); vida_status = cx_read(VID_A_INT_STAT); vida_mask = cx_read(VID_A_INT_MSK); + audint_status = cx_read(AUDIO_INT_INT_STAT); + audint_mask = cx_read(AUDIO_INT_INT_MSK); ts1_status = cx_read(VID_B_INT_STAT); ts1_mask = cx_read(VID_B_INT_MSK); ts2_status = cx_read(VID_C_INT_STAT); @@ -1759,12 +1771,15 @@ static irqreturn_t cx23885_irq(int irq, void *dev_id) goto out; vida_count = cx_read(VID_A_GPCNT); + audint_count = cx_read(AUD_INT_A_GPCNT); ts1_count = cx_read(ts1->reg_gpcnt); ts2_count = cx_read(ts2->reg_gpcnt); dprintk(7, "pci_status: 0x%08x pci_mask: 0x%08x\n", pci_status, pci_mask); dprintk(7, "vida_status: 0x%08x vida_mask: 0x%08x count: 0x%x\n", vida_status, vida_mask, vida_count); + dprintk(7, "audint_status: 0x%08x audint_mask: 0x%08x count: 0x%x\n", + audint_status, audint_mask, audint_count); dprintk(7, "ts1_status: 0x%08x ts1_mask: 0x%08x count: 0x%x\n", ts1_status, ts1_mask, ts1_count); dprintk(7, "ts2_status: 0x%08x ts2_mask: 0x%08x count: 0x%x\n", @@ -1861,6 +1876,9 @@ static irqreturn_t cx23885_irq(int irq, void *dev_id) if (vida_status) handled += cx23885_video_irq(dev, vida_status); + if (audint_status) + handled += cx23885_audio_irq(dev, audint_status, audint_mask); + if (pci_status & PCI_MSK_IR) { subdev_handled = false; v4l2_subdev_call(dev->sd_ir, core, interrupt_service_routine, diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h index d86bc0b1317b..abeba7a35cea 100644 --- a/drivers/media/video/cx23885/cx23885.h +++ b/drivers/media/video/cx23885/cx23885.h @@ -318,6 +318,34 @@ struct cx23885_kernel_ir { struct rc_dev *rc; }; +struct cx23885_audio_buffer { + unsigned int bpl; + struct btcx_riscmem risc; + struct videobuf_dmabuf dma; +}; + +struct cx23885_audio_dev { + struct cx23885_dev *dev; + + struct pci_dev *pci; + + struct snd_card *card; + + spinlock_t lock; + + atomic_t count; + + unsigned int dma_size; + unsigned int period_size; + unsigned int num_periods; + + struct videobuf_dmabuf *dma_risc; + + struct cx23885_audio_buffer *buf; + + struct snd_pcm_substream *substream; +}; + struct cx23885_dev { atomic_t refcount; struct v4l2_device v4l2_dev; @@ -400,6 +428,9 @@ struct cx23885_dev { atomic_t v4l_reader_count; struct cx23885_tvnorm encodernorm; + /* Analog raw audio */ + struct cx23885_audio_dev *audio_dev; + }; static inline struct cx23885_dev *to_cx23885(struct v4l2_device *v4l2_dev) @@ -563,6 +594,17 @@ extern void mc417_gpio_set(struct cx23885_dev *dev, u32 mask); extern void mc417_gpio_clear(struct cx23885_dev *dev, u32 mask); extern void mc417_gpio_enable(struct cx23885_dev *dev, u32 mask, int asoutput); +/* ----------------------------------------------------------- */ +/* cx23885-alsa.c */ +extern struct cx23885_audio_dev *cx23885_audio_initdev(struct cx23885_dev *dev); +extern void cx23885_audio_finidev(struct cx23885_dev *dev); +extern int cx23885_audio_irq(struct cx23885_dev *dev, u32 status, u32 mask); +extern int cx23885_risc_databuffer(struct pci_dev *pci, + struct btcx_riscmem *risc, + struct scatterlist *sglist, + unsigned int bpl, + unsigned int lines, + unsigned int lpi); /* ----------------------------------------------------------- */ /* tv norms */